Werthman, Carl & Irving Piliavin (1967): Gang Members and the Police. In: David J. Bordua (Hg.): The Police: Six Sociological Essays. New York: 56-98.
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Werthman, Carl/Piliavin, Irving, 1967: Gang Members and the Police. S. 56-98 in: Bordua, D. (Hrsg.), The Police: Six Sociological Essays. New York: John Wiley.
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